A gear pump is a compact and reliable hydraulic component that transfers fluid through the mechanical action of interlocking gears. Operating on the positive displacement principle, the pump traps fluid between the gear teeth and the inner casing, then pushes it from the inlet side to the outlet side as the gears rotate. Its simple structure, consistent output, and durable performance make it widely used in hydraulic equipment, automotive systems, and various types of industrial machinery.

At the heart of the gear pump are two gears—one driven directly by a motor and the other rotating in synchronization. As these gears engage and disengage inside a sealed housing, they create suction that draws fluid into the system. The fluid is then carried along the outer edges of the gears and discharged under pressure. This pulseless and continuous flow makes gear pumps ideal for operations requiring stable and predictable fluid delivery.

The performance and reliability of a gear pump depend on several core design elements: gear material, manufacturing precision, and pressure capacity. As a direct manufacturer, ATO produces a full range of gear pumps using high-strength alloy components and strict in-house quality control. Our gear pumps are designed for quiet, efficient operation and are suitable for a wide range of industrial applications. Whether you're replacing an aging component or building a new hydraulic system, ATO provides models in various displacement sizes, flow rates, and mounting formats to meet specific requirements. Many versions come with built-in relief valves and are compatible with standard hydraulic oils, allowing for easy integration into most systems.

With years of experience in hydraulic technology and component manufacturing, ATO proudly designs and produces all of its gear pumps in-house. By overseeing the entire process—from design to final testing—we ensure every product meets our performance and durability standards. Technical specifications, product documentation, and support services are available directly on the ATO website, along with global shipping options including fast delivery within the United States. For engineers, technicians, and system operators looking for long-term reliability and manufacturer-direct support, ATO gear pumps offer a trusted, professional solution.